Seikomariner - Two Tones

Inspired by the legendary GMT silhouette, this Seiko Mod GMT combines refined aesthetics with technical excellence. Powered by the Seiko NH34 automatic movement, it delivers unmatched reliability and a fully functional dual-time feature — perfect for those who value both style and substance.

Specifications:

• Case Diameter: 40 mm (excluding crown)
• Movement: Seiko NH34 Automatic (GMT function)
• Thickness: 12 mm
• Crystal: Sapphire, scratch-resistant with anti-reflective coating
• Lume: Super-Luminova for enhanced low-light visibility
• Case Material: 316L stainless steel
• Crown: Screw-down
• Bezel: Polished ceramic insert
• Bracelet: 316L stainless steel with secure clasp
• Lug Width: 20 mm
• Wrist Fit: Adjustable from 14.5 cm to 22 cm
• Case Back: Exhibition crystal or solid steel (depending on model)
• Water Resistance: 3 ATM / 30 meters
• GMT Function: Fully operational dual-time display